so he rose, withdrew to a corner of the same mosque, and performed two lengthy units of prayer. Throughout them he pleaded with Allah and invoked Him by His magnificent Names. He had barely completed the prayer when a well-dressed, handsome youth entered the mosque and called out:
“Where is al-Ḥasan ibn Sufyān?”
“I am,” I answered.
He said, “The Emir Tūlūn (1) conveys his greetings to you, apologizes for his shortcoming, and has sent one hundred gold dinars for each of you.”
We asked, “What has prompted him to do this?”
He replied, “The Emir wished to be alone today. While he was asleep, a horseman descended through the air holding a spear, came into his chamber, placed the butt of the spear against the Emir’s side, prodded him, and said: ‘Rise and go rescue al-Ḥasan ibn Sufyān and his companions—rise and help them, rise and help them; they have been hungry for three days in such-and-such a mosque.’ The Emir asked, ‘Who are you?’ He answered, ‘I am Riḍwān, the keeper of Paradise.’ The Emir awoke, his side aching severely, and at once dispatched this purse to you. He then came in person to visit you, bought the property surrounding that mosque (2), and endowed it for the benefit of visiting hadith scholars. May Allah reward him well.”
Al-Ḥasan ibn Sufyān—may Allah have mercy on him—was among the foremost masters, champions, and preservers of this science. A group of leading scholars, including Ibn Khuzaymah (3) and others, gathered with him, read portions of hadith to him, and began deliberately reversing the chains of transmission in order to test (4) what the shaykh retained. Whatever they altered, he corrected and set aright. He was then ninety (5) years old, yet at that age his memory remained precise and nothing of his hadith escaped him.
Among his useful observations is the saying: “Al-ʿAbsī is from Kūfa, al-ʿAyshī from Basra, and al-ʿAnsī from Egypt.” (6)